Results 21 to 30 of about 1,231 (195)

Application of spatially robust stereo-BRUV sampling for quantifying fish assemblages in UK marine protected areas. [PDF]

Ecol Appl
Abstract Marine protected areas (MPAs) often lack adequate data on the status of marine assemblages to support evidence‐based management. Stereo baited remote underwater video (BRUV) systems offer a powerful, low‐cost tool for collecting ecological data, yet they remain underutilized in the North East Atlantic, especially compared to more invasive ...
Exeter OM, Broderick AC, Harrison XA, Garzon F, Morcom S, Pender R, Russell T, Saunders I, Somerfield PJ, Sugar K, Trundle C, Webber J, Hooper T, Metcalfe K.   +13 more
europepmc   +2 more sources

Do Public Perceptions of the Environment Align With Empirical Measures? [PDF]

J R Soc N Z
To create effective environmental communications and policies, it is crucial to understand how laypeople, scientists, and experts perceive the environment. This study, based on a large‐scale, nationally representative survey from Aotearoa New Zealand and scientific reports and literature, examines the similarities and differences in perceptions across ...
Booth PL, McLeod LJ, Stahlmann-Brown P.
europepmc   +2 more sources

Distribution and taxonomic identity of the species of Narcine (Toperdiniformes: Narcinidae) in the southwestern Atlantic Ocean. [PDF]

J Fish Biol
Abstract The genus Narcine is the most diverse among electric rays of the order Torpediniformes and is also the only electric ray genus with more than one species occurring in South American waters: Narcine brasiliensis and Narcine bancroftii. The first species has been historically described as distributed from Brazil's southeast coast down to ...
Gonçalves Araújo MV, Rosa RS, Capretz Batista da Silva JP.   +2 more
europepmc   +2 more sources

Description of the egg capsule of Atlantoraja castelnaui (Elasmobranchii, Rajidae) [PDF]

Brazilian Journal of Oceanography, 2008
Instituto de Pesca (Av. Bartolomeu de Gusmao, 192, Ponta da Praia, 11030-906 Santos, SP, Brasil) *cristina_oddone@yahoo.com Skates (Rajidae) are oviparous and lay their eggs on the sea floor. Their large horny capsules are synthesized and secreted by the nidamental gland (WOURMS, 1977; WOURMS et ...
María Cristina Oddone, Alejo Mesa, Alberto Ferreira de Amorim   +2 more
doaj   +6 more sources

Reproductive period of Dipturus oxyrinchus (Elasmobranchii: Rajidae) in Sardinian seas = Periodo ripèroduttivo di Dipturus Oxyrinchus (Elasmobranchii: Rajidae) nei mari sardi

, 2012
The reproduction of longnosed skate, Dipturus oxyrinchus (Elasmobranchik Rajidae) was studied using 334 specimens from Sardinian waters. Total length of females ranged from 130 to 1155 mm and of males ranged from 154 to 995 mm. The analysis of the monthly distribution of maturity. stages shows that this species has a long spawning period.
CABIDDU, SERENELLA, ATZORI, GIULIA, MULAS, ANTONELLO, PORCU, CRISTINA, Folles MC   +4 more
openaire   +2 more sources

Step by step: the unprecedented evolutionary history of family Rajidae

, 2019
Among skates, Rajidae represents one of the most enigmatic family of cartilaginous fish whose bio- ecological traits contributed to an extraordinary evolutionary success in terms of species richness and endemism. Past and present taxonomic conflicts and species misidentifications are linked to their extraordinary level of morphological stasis.
Alice Ferrari, Silvia Messinetti, Enrico Negrisolo, CROBE, VALENTINA, Alessia Cariani, Fausto Tinti   +5 more
core   +3 more sources

Aquatic eDNA outperforms sedimentary eDNA for the detection of estuarine fish communities in subtropical coastal vegetated ecosystems. [PDF]

J Fish Biol
Abstract In South Africa, mangrove forests and seagrass meadows often co‐occur in estuarine systems and in combination host rich, often endemic biodiversity. There is an urgent need to explore community diversity in coastal vegetated ecosystems, given the degrading effects of climate change and anthropogenic pressures.
Rossouw EI, von der Heyden S, Peer N.
europepmc   +2 more sources

Reproductive Anatomy of Chondrichthyans: Notes on Specimen Handling and Sperm Extraction. I. Rays and Skates

Animals, 2021
The superorder Batoidea (rays, skates, and relatives), constitutes one of the most threatened group of vertebrates. Strengthening ex situ conservation programs developed in research centers and public aquaria could be a way of addressing this situation ...
Pablo García-Salinas, Victor Gallego, Juan F. Asturiano   +2 more
doaj   +1 more source

The contribution of isopods in the feeding of Sympterygya spp (pisces: rajidae) with a description of Ancinus gaucho sp. n. (isopoda: sphaeromatidae)

Brazilian Journal of Oceanography, 1987
The present paper deals with the isopods present in the stomach content of Sympterygia acuta and S. bonapartei, two species of Rajidae frequently found along Rio Grande do Sul coast.
Ana Maria Setubal Pires
doaj   +1 more source

Revision of the fossil batomorphs from the Cretaceous of Lebanon, and their impact on our understanding of the early step of the evolution of the clade [PDF]

Research & Knowledge, 2017
Lebanon is endowed with its outstanding preservation lagerstätten of fossil fish from the Upper Cretaceous. The batomorphs are represented by 16 species of Rajiformes belonging to 9 genera and 4 families however, their phylogeny remains poorly understood.
Georges Kachacha, Gilles Cuny, Dany Azar, Pierre Abi Saad   +3 more
doaj   +1 more source